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Finding the Fourth Proportional to 69,457.70, 95,849.79 and 39,246.14

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Solution

The fourth proportional to 69,457.70, 95,849.79 and 39,246.14 is: 54,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,457.70 : 95,849.79 = 39,246.14 : x
  2. Step 2: Convert to fraction form
    69,457.70/95,849.79 = 39,246.14/x
  3. Step 3: Cross multiply
    69,457.70x = 95,849.79 × 39,246.14
  4. Step 4: Simplify right side
    69,457.70x = 3,761,734,277.31
  5. Step 5: Solve for x
    x = 3,761,734,277.31/69,457.70
  6. Step 6: Final answer
    x = 54,158.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.